Vibration-damping characterization of the basalt/epoxy composite laminates containing graphene nanopellets

AbstractThe present study investigates the influence of graphene nanopellets (GnPs) on the damping and vibration characteristics of fiber-reinforced basalt/epoxy composites for different weight contents of GnPs particles (0.1, 0.2 and 0.3 wt%). The variation of dynamic properties in terms of loss and storage modulus was explored by using the experimental modal analysis. The damping properties were determined by using logarithmic decrement method from the acceleration-time envelope curves. Results showed that the incorporation of GnPs at weight contents of 0.1% and 0.2% significantly affected the damping and vibration characteristics of the samples as a result of the interfacial strength between the GnPs particles-fiber-matrix interactions. The natural frequencies increased by 20.7% and 25% at GnPs contents of 0.1 and 0.2 wt%, whereas the damping ratios increased by 28.5% and 57.1%, respectively.

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An experimental investigation on dynamic and mechanical characterization of olive pomace-filled glass/epoxy composite laminates

Journal of the Brazilian Society of Mechanical Sciences and Engineering ◽

10.1007/s40430-020-02592-z ◽

2020 ◽

Vol 42 (10) ◽

Author(s):

Ahmet Erkliğ ◽

Mehmet Bulut ◽

Ahmed Shihan

Keyword(s):

Experimental Investigation ◽

Composite Laminates ◽

Mechanical Characterization ◽

Epoxy Composite ◽

Olive Pomace

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Cryogenic through-thickness tensile characterization of plain woven glass/epoxy composite laminates using cross specimens: Experimental test and finite element analysis

Composites Part B Engineering ◽

10.1016/j.compositesb.2015.03.076 ◽

2015 ◽

Vol 78 ◽

pp. 42-49 ◽

Cited By ~ 9

Author(s):

Tomo Takeda ◽

Fumio Narita ◽

Yasuhide Shindo ◽

Kazuaki Sanada

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Experimental Test ◽

Composite Laminates ◽

Epoxy Composite ◽

Element Analysis ◽

Tensile Characterization

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Dynamic properties of carbon aerogel/epoxy nanocomposite and carbon fiber-reinforced composite beams

Journal of Reinforced Plastics and Composites ◽

10.1177/0731684417728585 ◽

2017 ◽

Vol 36 (23) ◽

pp. 1745-1755 ◽

Cited By ~ 3

Author(s):

Tsung-Han Hsieh ◽

Yau-Shian Huang ◽

Ming-Yuan Shen

Keyword(s):

Carbon Fiber ◽

Composite Laminates ◽

Natural Frequencies ◽

Dynamic Properties ◽

Damping Ratio ◽

Carbon Aerogel ◽

Composite Beams ◽

Carbon Aerogels ◽

Fiber Reinforced ◽

Carbon Fiber Reinforced

Carbon aerogels are a promising candidate for vibration insulation due to their three-dimensional networked structures interconnected with carbon nanoparticles. However, the effect of adding carbon aerogels to polymer-based composites on their dynamic properties remains unclear. In this study, an epoxy polymer matrix was modified with carbon aerogels, and this modified matrix was used to manufacture nanocomposite plates and carbon fiber-reinforced polymer composite laminates to investigate its dynamic properties. Force vibration tests were performed on cantilever beams of the composite beams. The frequency responses of the composite beams were measured experimentally and analytically; the half-power method was used to calculate the damping ratio for each vibration mode. According to the experimental results, the presence of carbon aerogel in the nanocomposites and laminates steadily increased the natural frequencies. Differences within 10% of the natural frequencies were obtained between the experimental and numerically. Furthermore, the damping ratios of the nanocomposite and laminate beams increased significantly with the increase in aerogel loading. For a nanocomposite with 0.3 wt% aerogel, a damping ratio approximately 44% greater than that of unmodified nanocomposite was obtained. The maximum damping ratio was 4.682% for the laminate with 0.5 wt% aerogel—an 88% increase compared with the unmodified laminate.

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